sym

#!/bin/bash

# reverses the order of TARGET and LINK_NAME in command `ln`

# TODO: add -sudo option

declare -A option_descriptions=(
    [" "]="What happens if no arg given?"
    ["help"]="Display a help message"
    ["debug"]="Opens this script with \$EDITOR"
    ["<link> to <target>"]="main syntax"
    ["*"]="Default function"
)

main() {
    if [ $# -eq 0 ]; then show_usage; fi

    case "$1" in
            -h | h?lp  ) shift ; show_help ;;
            -d | d*bug ) shift ; debug_this_script ;;
            -from | from) shift ; default_fn "$@" ;;
            *) default_fn "$@" ;;
    esac

    # Process should not reach this point, if it does, maybe forgot exit
    echo -e "\e[31mERROR\e[0m" >&2
    exit 1
}

# Now add functions here in alphabetical order **********************************************

debug_this_script() {
    micro $0
    exit "$?"
}

default_fn() {
    # Initialize variables
    linkname=""
    target=""
    
    # Check for missing arguments
    if [[ $# -lt 2 ]]; then
        err "Missing arguments"
        exit 1
    fi
    
    # Handle options
    case "$1" in
        to | -to)
            err "Missing link name"
            exit 1
            ;;
        *)
            linkname="$1"
            ;;
    esac
    
    case "$2" in
        to | -to | '-->')
            if [[ -z "$3" ]]; then
                err "Missing target for symlink"
                exit 1
            else
                target="$3"
            fi
            ;;
        *)
            target="$2"
            ;;
    esac
    
    # Create the symlink and capture stderr
    ln -siv "$target" "$linkname"
    # exitstat="$?"
    # 
    # # Check exit status and log appropriately
    # if [[ $exitstat -eq 0 ]]; then
        # warn "Created symlink $linkname ---> $target"
        # exit 0
    # else
        # err "ERROR: $stderr"
        # exit $exitstat
    # fi
    exit "$?"
}

# Help function to display usage information and option descriptions
show_help() {
    # ANSI color codes for colors without using \e[33m and \e[31m
    GREEN='\033[0;32m'
    BLUE='\033[0;34m'
    NC='\033[0m' # No Color

    echo "Usage: $(basename "$0") [OPTIONS]"
    echo "Options:"
    for option in "${!option_descriptions[@]}"; do
        printf "  ${GREEN}%-12s${NC} %s\n" "$option" "${option_descriptions[$option]}"
    done
    exit 0
}

show_usage() {
	warn 'symlink <link> to <target>'
	exit 1
}

# Messages
warn(){ echo -e "\e[33m$@\e[0m"; }
err() { echo -e "\e[31m$@\e[0m" 1>&2; }

#warnings
main "$@" #<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<